1.Killer Sudoku is a popular variation of the classic Sudoku puzzle that combines standard Sudoku rules with an additional layer of complexity involving cages. In Killer Sudoku, numbers within outlined regions, called "cages," must sum to a specified value, and numbers cannot repeat within these cages or in rows, columns, and 3x3 subgrids.
Standard Sudoku Rules Apply:
Numbers 1-9 must appear exactly once in each row, column, and 3x3 subgrid.
Cages and Sums:
The grid is divided into "cages" (outlined regions), each with a target sum indicated in its top-left corner. The numbers within a cage must add up to that sum, and no number can be repeated within a single cage.
Solving Techniques:
Killer Sudoku often involves techniques beyond basic Sudoku, including mental arithmetic and logical deduction related to cage sums and number exclusions. The "45 rule" is a common technique, based on the sum of numbers 1-9 being 45.
Origins:
Killer Sudoku was established in Japan by the mid-1990s as "samunamupure," a Nipponized form of "sum number place," and introduced to the English-speaking world by The Times in 2005.
Difficulty:
While the name suggests a challenging puzzle, simpler Killer Sudokus can be easier than regular Sudokus, and the difficulty can vary significantly, with hard versions requiring considerable time and mental effort.
Standard Sudoku Rules Apply:
Numbers 1-9 must appear exactly once in each row, column, and 3x3 subgrid.
Cages and Sums:
The grid is divided into "cages" (outlined regions), each with a target sum indicated in its top-left corner. The numbers within a cage must add up to that sum, and no number can be repeated within a single cage.
Solving Techniques:
Killer Sudoku often involves techniques beyond basic Sudoku, including mental arithmetic and logical deduction related to cage sums and number exclusions. The "45 rule" is a common technique, based on the sum of numbers 1-9 being 45.
Origins:
Killer Sudoku was established in Japan by the mid-1990s as "samunamupure," a Nipponized form of "sum number place," and introduced to the English-speaking world by The Times in 2005.
Difficulty:
While the name suggests a challenging puzzle, simpler Killer Sudokus can be easier than regular Sudokus, and the difficulty can vary significantly, with hard versions requiring considerable time and mental effort.
1. -Simon: What are you playing?
-Ed: Killer Sudoku, I think its pretty fun!
I couldn’t find a killer sudoku gif, sorry.
-Ed: Killer Sudoku, I think its pretty fun!
I couldn’t find a killer sudoku gif, sorry.
by Malik Yakubov July 20, 2025
Get the Killer Sudoku mug.A common vehicle used to fool people into thinking the car is their "uber driver" and kidnapping them.
Investigator: Alright tell me the story again.
Victim: Im scared man im really scared..... I-I--I got in The Black Sudan and h-he said h-hh-he was my uber drive b-but the next thing im know Im in an abandoned warehouse in the middle of the woods all chained up!
Victim: Im scared man im really scared..... I-I--I got in The Black Sudan and h-he said h-hh-he was my uber drive b-but the next thing im know Im in an abandoned warehouse in the middle of the woods all chained up!
by JojoCreeperChungus100WholsomeF May 11, 2020
Get the The Black Sudan mug.Boris Johnson’s throwing of parties during the pandemic, in direct violation of lockdown rules, is a prime example of a politician "Doing a Sunak".
by Professor Hulk June 27, 2024
Get the Doing a Sunak mug.The ascension phase that proceeds after the act of moon gooning.
One who goons to completion will not be able to achieve Abliteragato mantera sudareche.
One who goons to completion will not be able to achieve Abliteragato mantera sudareche.
by IrishGareBear January 16, 2026
Get the Abliteragato mantera sudareche mug.